On her second Remodel, Sendai wears a version of Naka's outfit that resembles a ninja outfit. Her searchlight is attached to her right thigh and like Yuudachi she also wear a white scarf. She's also shown holding onto a torpedo the way a ninja would with a kunai.
She wears her hair in the distinctive two side up style.
She seems obsessed with night battles, with several lines about her wanting to participate in one. Her obsession is so strong that she gained a personal tag named "Night Battle Idiot" (夜戦バカ) . The phrase "night battle" is often used as a euphemism for sex in KanColle fan works.
川内 can also be read as "Kawauchi", which is sometimes used as a teasing way to refer to Sendai. Zuikaku calls her this in her 2000 hourly line.
